﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Manager.DBUtility;//Please add references
namespace Manager.DAL.Admin
{
    /// <summary>
    /// 数据访问类:M_News
    /// </summary>
    public partial class M_NewsDal
    {
        public M_NewsDal()
        { }
        #region  Method
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int NewsID)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from M_News");
            strSql.Append(" where NewsID=@NewsID");
            SqlParameter[] parameters = {
					new SqlParameter("@NewsID", SqlDbType.Int,4)
			};
            parameters[0].Value = NewsID;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Manager.Model.Admin.M_News model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into M_News(");
            strSql.Append("NewsTitle,NewsContent,NewsAuther,NewsSource,NewsTypeID,NewsDate,IsValid,IsTop,NewsImage)");
            strSql.Append(" values (");
            strSql.Append("@NewsTitle,@NewsContent,@NewsAuther,@NewsSource,@NewsTypeID,@NewsDate,@IsValid,@IsTop,@NewsImage)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@NewsTitle", SqlDbType.NVarChar,50),
					new SqlParameter("@NewsContent", SqlDbType.Text),
					new SqlParameter("@NewsAuther", SqlDbType.NVarChar,20),
					new SqlParameter("@NewsSource", SqlDbType.NVarChar,50),
					new SqlParameter("@NewsTypeID", SqlDbType.Int,4),
					new SqlParameter("@NewsDate", SqlDbType.DateTime),
					new SqlParameter("@IsValid", SqlDbType.Bit,1),
					new SqlParameter("@IsTop", SqlDbType.Bit,1),
					new SqlParameter("@NewsImage", SqlDbType.NVarChar,200)};
            parameters[0].Value = model.NewsTitle;
            parameters[1].Value = model.NewsContent;
            parameters[2].Value = model.NewsAuther;
            parameters[3].Value = model.NewsSource;
            parameters[4].Value = model.NewsTypeID;
            parameters[5].Value = model.NewsDate;
            parameters[6].Value = model.IsValid;
            parameters[7].Value = model.IsTop;
            parameters[8].Value = model.NewsImage;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(Manager.Model.Admin.M_News model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update M_News set ");
            strSql.Append("NewsTitle=@NewsTitle,");
            strSql.Append("NewsContent=@NewsContent,");
            strSql.Append("NewsAuther=@NewsAuther,");
            strSql.Append("NewsSource=@NewsSource,");
            strSql.Append("NewsTypeID=@NewsTypeID,");
            strSql.Append("NewsDate=@NewsDate,");
            strSql.Append("IsValid=@IsValid,");
            strSql.Append("IsTop=@IsTop,");
            strSql.Append("NewsImage=@NewsImage");
            strSql.Append(" where NewsID=@NewsID");
            SqlParameter[] parameters = {
					new SqlParameter("@NewsTitle", SqlDbType.NVarChar,50),
					new SqlParameter("@NewsContent", SqlDbType.Text),
					new SqlParameter("@NewsAuther", SqlDbType.NVarChar,20),
					new SqlParameter("@NewsSource", SqlDbType.NVarChar,50),
					new SqlParameter("@NewsTypeID", SqlDbType.Int,4),
					new SqlParameter("@NewsDate", SqlDbType.DateTime),
					new SqlParameter("@IsValid", SqlDbType.Bit,1),
					new SqlParameter("@IsTop", SqlDbType.Bit,1),
					new SqlParameter("@NewsImage", SqlDbType.NVarChar,200),
					new SqlParameter("@NewsID", SqlDbType.Int,4)};
            parameters[0].Value = model.NewsTitle;
            parameters[1].Value = model.NewsContent;
            parameters[2].Value = model.NewsAuther;
            parameters[3].Value = model.NewsSource;
            parameters[4].Value = model.NewsTypeID;
            parameters[5].Value = model.NewsDate;
            parameters[6].Value = model.IsValid;
            parameters[7].Value = model.IsTop;
            parameters[8].Value = model.NewsImage;
            parameters[9].Value = model.NewsID;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int NewsID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from M_News ");
            strSql.Append(" where NewsID=@NewsID");
            SqlParameter[] parameters = {
					new SqlParameter("@NewsID", SqlDbType.Int,4)
			};
            parameters[0].Value = NewsID;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string NewsIDlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from M_News ");
            strSql.Append(" where NewsID in (" + NewsIDlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Manager.Model.Admin.M_News GetModel(int NewsID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 NewsID,NewsTitle,NewsContent,NewsAuther,NewsSource,NewsTypeID,NewsDate,IsValid,IsTop,NewsImage from M_News ");
            strSql.Append(" where NewsID=@NewsID");
            SqlParameter[] parameters = {
					new SqlParameter("@NewsID", SqlDbType.Int,4)
			};
            parameters[0].Value = NewsID;

            Manager.Model.Admin.M_News model = new Manager.Model.Admin.M_News();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                if (ds.Tables[0].Rows[0]["NewsID"] != null && ds.Tables[0].Rows[0]["NewsID"].ToString() != "")
                {
                    model.NewsID = int.Parse(ds.Tables[0].Rows[0]["NewsID"].ToString());
                }
                if (ds.Tables[0].Rows[0]["NewsTitle"] != null && ds.Tables[0].Rows[0]["NewsTitle"].ToString() != "")
                {
                    model.NewsTitle = ds.Tables[0].Rows[0]["NewsTitle"].ToString();
                }
                if (ds.Tables[0].Rows[0]["NewsContent"] != null && ds.Tables[0].Rows[0]["NewsContent"].ToString() != "")
                {
                    model.NewsContent = ds.Tables[0].Rows[0]["NewsContent"].ToString();
                }
                if (ds.Tables[0].Rows[0]["NewsAuther"] != null && ds.Tables[0].Rows[0]["NewsAuther"].ToString() != "")
                {
                    model.NewsAuther = ds.Tables[0].Rows[0]["NewsAuther"].ToString();
                }
                if (ds.Tables[0].Rows[0]["NewsSource"] != null && ds.Tables[0].Rows[0]["NewsSource"].ToString() != "")
                {
                    model.NewsSource = ds.Tables[0].Rows[0]["NewsSource"].ToString();
                }
                if (ds.Tables[0].Rows[0]["NewsTypeID"] != null && ds.Tables[0].Rows[0]["NewsTypeID"].ToString() != "")
                {
                    model.NewsTypeID = int.Parse(ds.Tables[0].Rows[0]["NewsTypeID"].ToString());
                }
                if (ds.Tables[0].Rows[0]["NewsDate"] != null && ds.Tables[0].Rows[0]["NewsDate"].ToString() != "")
                {
                    model.NewsDate = DateTime.Parse(ds.Tables[0].Rows[0]["NewsDate"].ToString());
                }
                if (ds.Tables[0].Rows[0]["IsValid"] != null && ds.Tables[0].Rows[0]["IsValid"].ToString() != "")
                {
                    if ((ds.Tables[0].Rows[0]["IsValid"].ToString() == "1") || (ds.Tables[0].Rows[0]["IsValid"].ToString().ToLower() == "true"))
                    {
                        model.IsValid = true;
                    }
                    else
                    {
                        model.IsValid = false;
                    }
                }
                if (ds.Tables[0].Rows[0]["IsTop"] != null && ds.Tables[0].Rows[0]["IsTop"].ToString() != "")
                {
                    if ((ds.Tables[0].Rows[0]["IsTop"].ToString() == "1") || (ds.Tables[0].Rows[0]["IsTop"].ToString().ToLower() == "true"))
                    {
                        model.IsTop = true;
                    }
                    else
                    {
                        model.IsTop = false;
                    }
                }
                if (ds.Tables[0].Rows[0]["NewsImage"] != null && ds.Tables[0].Rows[0]["NewsImage"].ToString() != "")
                {
                    model.NewsImage = ds.Tables[0].Rows[0]["NewsImage"].ToString();
                }
                return model;
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select NewsID,NewsTitle,NewsContent,NewsAuther,NewsSource,NewsTypeID,NewsDate,IsValid,IsTop,NewsImage ");
            strSql.Append(" FROM M_News ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" NewsID,NewsTitle,NewsContent,NewsAuther,NewsSource,NewsTypeID,NewsDate,IsValid,IsTop,NewsImage ");
            strSql.Append(" FROM M_News ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获取记录总数
        /// </summary>
        public int GetRecordCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) FROM M_News ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            object obj = DbHelperSQL.GetSingle(strSql.ToString());
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT * FROM ( ");
            strSql.Append(" SELECT ROW_NUMBER() OVER (");
            if (!string.IsNullOrEmpty(orderby.Trim()))
            {
                strSql.Append("order by T." + orderby);
            }
            else
            {
                strSql.Append("order by T.NewsID desc");
            }
            strSql.Append(")AS Row, T.*  from M_News T ");
            if (!string.IsNullOrEmpty(strWhere.Trim()))
            {
                strSql.Append(" WHERE " + strWhere);
            }
            strSql.Append(" ) TT");
            strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetList(int PageSize,int PageIndex,string strWhere)
        {
            SqlParameter[] parameters = {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@IsReCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
                    };
            parameters[0].Value = "M_News";
            parameters[1].Value = "NewsID";
            parameters[2].Value = PageSize;
            parameters[3].Value = PageIndex;
            parameters[4].Value = 0;
            parameters[5].Value = 0;
            parameters[6].Value = strWhere;	
            return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
        }*/

        #endregion  Method
    }
}

